datagridview

问题 I've a DataGridView in a winforms app. Apart from the 4 columns coming from the db table,I need to show an additional column having a combobox in the datagridview[may be using DataGridViewComboColumn?]. 2.And then I want to add different set of items to each combobox for every row. How do I go about this? Thanks. 回答1: You may try to add them via DataBindingComplete of the grid Something on these lines void dataGridView1_DataBindingComplete(object sender, DataGridViewBindingCompleteEventArgs e

问题 I am reading an xml file using dataset and then i am creating a datagridview and assigning the table from dataset to datagridview.datasource dynamically. The problem i am facing here is, i want to add a combobox for one cell in datagridview. Below is my code : datagridview1.AllowUserToAddRows = false; datagridview1.AllowUserToDeleteRows = false; datagridview1.RowHeadersVisible = false; datagridview1.AutoSizeColumnsMode = DataGridViewAutoSizeColumnsMode.AllCells; datagridview1.AutoSizeRowsMode

问题 Try MysqlConn.Open() For i As Integer = Me.DataGridView1.SelectedRows.Count - 1 To 0 Step -1 Dim Query2 As String Query2 = "Update blist SET quantity=(quantity-1) where quantity = '" & Me.DataGridView1.SelectedRows(i).Cells(0).Value.ToString & "' " COMMAND = New MySqlCommand(Query2, MysqlConn) SDA.SelectCommand = COMMAND SDA.Fill(dbDataSet) bSource.DataSource = dbDataSet **error**Me.DataGridView1.DataSource = bSource**error** SDA.Update(dbDataSet) TextBox2.Text = "" MessageBox.Show("Success",

问题 How can i fill my datagridview with a - delimited text from my richtextbox? example: my richtextbox content: 000001-Kobe-Bryant-24-Lakers 000002-Lebron-James-23-Cavaliers 000003-Derick-Rose-1-Bulls 000004-Kevin-Durant-35-Thunders Then the out put on my datafridview should be like this PlayerID | Name | LastName | Number | Team | ------------------------------------------------------------------- 000001 |Kobe | Bryant | 24 |Lakers | -------------------------------------------------------------

问题 How can i fill my datagridview with a - delimited text from my richtextbox? example: my richtextbox content: 000001-Kobe-Bryant-24-Lakers 000002-Lebron-James-23-Cavaliers 000003-Derick-Rose-1-Bulls 000004-Kevin-Durant-35-Thunders Then the out put on my datafridview should be like this PlayerID | Name | LastName | Number | Team | ------------------------------------------------------------------- 000001 |Kobe | Bryant | 24 |Lakers | -------------------------------------------------------------

问题 I've created a custom User Control that inherits from UserControl. It is pretty basic, it has some text fields, drop downs, and some radio buttons for right now. Ultimately I would like to string together 100's of these side by side to allow the user to fill out as many as they would like. The ideal solution to this would be to have a DataGridView where each column is an instance of my custom User Control. Is there a way to accomplish this? Or perhaps a better/alternative solution? My initial

问题 Why does DataGridView raise CellValidating event upon simple navigation through arrow keys? How can I prevent it? Here is the key information about DataGridView state when it calls CellValidating : EditMode = EditOnKeyStrokeOrF2 IsCurrentCellInEditMode = False e.FormattedValue = [Same as the current value of the cell] As you can see, user has not triggered any editing operation. He's just moving across the cells by pressing right-arrow key. One would not expect validation to occur at this

问题 I have DataGridView that allows editing (ReadOnly = false). The DataGridView may also have one or more filters associated with its datasource. For example: (myDataGridView.DataSource as DataTable).DefaultView.RowFilter = "[myColumn] = 'value'"; If the filter is applied, and the user edits the field in myColumn, the row immediately "disappears", as it no longer fulfills the filter's criteria. Is there a way to suppress or cancel this action? Ideally, I want the user to "refresh" the grid so

问题 I have DataGridView that allows editing (ReadOnly = false). The DataGridView may also have one or more filters associated with its datasource. For example: (myDataGridView.DataSource as DataTable).DefaultView.RowFilter = "[myColumn] = 'value'"; If the filter is applied, and the user edits the field in myColumn, the row immediately "disappears", as it no longer fulfills the filter's criteria. Is there a way to suppress or cancel this action? Ideally, I want the user to "refresh" the grid so

问题 I already have an SQlite database setup. Right now I'm parsing through it. For example, if certain values in the column Seq are >30 I transfer those values to a list. I want to use that list, to populate a datagrid view so the user can see what values were > 30 How do I populate a data grid view with multiple lists? Basically column 1 should be list1, column 2, list 2, etc. EDIT: DOES anyone think I should use a list view instead? If so, how? Here's my code for parsing to obtain values for my